The War for Maroon Dominance, also known as the One Big Angry Family War, is a conflict which started when the signatories of the Treaty for Maroon Dominance declared war upon the CRAP and the GOD. The war expanded to include the entirety of the Chestnut Accords and many of their direct allies on the side of CRAP and GOD, and to include almost all of Oculus and several other alliances on the M3D side.

Following a series of senatorial disagreements and political conflicts between Non Grata, Nordreich, The Last Remnants, and other signatories of the One Big Happy Family Accords, the three alliances withdrew from the pact on the 14th February, 2017. On the 16th February, the One Big Happy Family Accords was dissolved by the remaining members.

On the 17th February, Non Grata, Nordreich and The Last Remnants announced the Treaty for Maroon Dominance, an agreement to wrestle control of the Maroon senate and then protect their respective positions of power from the former signatories of the One Big Happy Family Accords. This was immediately followed by a declaration of war on the Coalition of Royal Allied Powers and the Global Order of Darkness.

The war was concluded with a peace agreement that was published on the 21st of May. Most of the alliances involved, as of that date, were no longer engaged in conflict. A handful of them, specifically Non Grata, Nordreich, The Last Remnants, The Templar Knights and the Random Insanity Alliance remained at war for a further two weeks until June 4th, when the conflict officially ended. It should be noted, however, that the Global Order of Darkness did not receive peace.